Grok 3 vs xAI: Grok 4
Compare Grok 3 and xAI: Grok 4, both from xAI, in 2 community votes, grok 3 wins 100% of head-to-head duels, context windows of 128K vs 256K, tested across 52 shared challenges. Updated May 2026.
Which is better, Grok 3 or xAI: Grok 4?
Grok 3 is the better choice overall, winning 100% of 2 blind community votes on Rival. Context windows: 128K vs 256K tokens. Compare their real outputs side by side below.
Key Differences Between Grok 3 and xAI: Grok 4
Grok 3 is made by xai while xAI: Grok 4 is from xai. Grok 3 has a 128K token context window compared to xAI: Grok 4's 256K. In community voting, In 2 community votes, Grok 3 wins 100% of head-to-head duels.
In 2 community votes, Grok 3 wins 100% of head-to-head duels. Based on blind community voting from the Rival open dataset of 2+ human preference judgments for this pair.
Per 1M tokens
Pick Grok 3. In 2 blind votes, Grok 3 wins 100% of the time. That's not luck.
Style Comparison
Grok 3 uses 1.8x more transitions
